Mining machine



April 24, 1928.

C. F. OSG OOD MINING MACHINE Filed June l8, 1923 3 Sheets-Sheet 1 5 Sheets-Sheet. 2

C. F. OSGOOD MINING MACHINE Filed June l8, 1925 X \X l \H/ I )1 Q R Q fiwv m 5 J7 mfi FL f|\ 3 w 6 m 6 Q 0 m 5 Q QQO Q R Q I W R I 1 my h J April 24, 1928.

April 24, 1928.

C. F. OSGOOD MINING MACHINE Filed June 18 23 3 Sheetsn FIIL/ S m g w Patented Apr. 24, 1928.

CHARLES E. OSGOOD, or CLAREMONT, new HAMPSHIRE, lessrenoia'v T SULLIVAN MACHINERY COMPANY, aoonronA'rronor MASSACHUSETTS.

MINING MACHINE.

Application filed'll'une 18, 1923. Serial No. 646,000.

My invention relates to mining machines. An ob ect of my lnvention 18 to provide an improved mining machine. Another object of my invention is to provide improved cutting and feeding mechanism for a min- .ing machine. A further object of my invention is to provide an improved feeding and feed controlling mechanism for a mining machine whereby the operation of the machine is materially improved and the mechanism simplified and more flexible to operate. These and other objects of my invention will hereinafter more fully appear.

In the accompanying drawings I have shown for purposes of illustration one embodiment which my invention may assume in practice.

In these drawings,

Fig. 1 is a side elevation of a mining machine of theflexibly fed type mounted on its truck in position for transport.

Fig. 2 is a side elevation of the opposite side of the mining machine shown in Fig.1.

Fig. 3 is a plan view, partially in section, of Fig. 2. p y

Fig. 1 is a side elevation, partially in section, of the mechanism shown in Fig. 3.

Fig. 5 is a detail sectional view taken on line 5-5 of Fig. 3.. 1

Fig. 6 is adiagrammatic view showing the machine in operation in a room.

In this illustrative construction I have shown a mining machine of the room and pillar type comprising a casing 1 slidable on a bottom plate 2 on the mine bottom and movable relative to a feeding means adapted to provide advance flexible feeding portions, herein a continuous flexible feeding member 3 in the form of a chain, and having a cutter bar 4, rigidly secured within said frame, provided with an endless cutter bit carrying chain. 5. The feeding means and the cutting mechanism are driven from a. suitable motor 6 (indicated by dotted lines) through driving connections, hereinafter described, and connected to a feed operating member 7 and a. take-up member 7 disposed on a horizontal axis and projecting laterally from the rear end of the frame, and to a cutter chain sprocket 8 rotatable on a vertical axisbeneath the rear end-of the ma chine frame. 7 q

In describing my improved construction, I will first describe the cutter chain driving mecha.

.n. This, being the inventioi'lltif one Morris P. Holmes, neednot be described specifically. It will be noted, however',that the armature shaft vided with a bevel pinion 9 which in turn meshes with a bevel gear 10 journaled on abearing ,11 about a vertically disposed stud 12 on the rear endof the machine frame. The gearlO is connected, as by bolt and nut connections 18, to a sleeve carrying a pinion 14; which meshes with a plurality, herein. three, of planetary gears 15, journaled in suitable hearings on a spider 16, only one of these gears being shown. The planetary gears mesh with in internal gear 17 attached as by screws 18 to the cutter chain sprocket 8 and which with the sprocket is journaled in bearings 19 herein located between bearings20, so as to rotate relative to the spider and the lower end of the stud. As shown,

the spider 1.6 is also provided with an upstanding sleeve 21 journaled on the stud inside of the sleeve carrying the pinion 14, and suitable bearing sleeves 22 and 23 are provided on the opposite sides of thesleeve 21 whilethebearings 19 are enclosed in sleeves-24 and 25. A flanged ring26 is interposed between the lower bearing 19 and the bearing 20, while a retaining member 27. attached to the bottom plate by screws 28 and to areduced portion 29 on the stud by a screw 30, is provided to hold the parts in assembled relation. The gear 17 is provided with a frictionsurfaceBl onits outer periphery with which a brake band 32 cooperates under the. control of a handwheel 38. f

Cooperating with this mechanism is the feeding mechanism. This mechanism is herein connected to and driven by the sleeve 21 on the spider 16, the same being connected of the motor 6 is pro 1, 67,167 UNITED STATES TENr-oFFlcE.

by a semi-permanent clutch 34 to a sleeve p 35 having a worm 36 formed thereon, the sleeve 35 in turn being ournaled on a flanged bearing sleeve 37, the bearing 11, and a bearing 38 removablethroughv the top of the machine frame upon removal of a an spider 45 keyed to the feed op i of a brake band 58.

crating mcn'iber T, as at 4:6. The planetary gears also mesh with an internal gear 4 suitably journaled on bearin s on theshaft and provided with a friction surface 48-011 its outer periphery under the control of a brake band 49, operated through suitable controlling mechanism, hereinafter described. As shown, the worm gear 40 is also keyed, as at 50, to a sl1att'5l,oppositely disposed with respect to the shaft 42, and having similarplanetary connections including a pinion 52'tormed thereon which meshes with a plurality ot planetary gears 58, suitably journaled on a spider 54 keyed to a take-up member 7 sin'iilarto teed operating member 7, The gears '53 mesh with an internal gear 56, journaled in suitable bearings on-the shaft 51, and having a friction surface 57 on its outer periphery under control The worm gear." 40 is :tlso provided with a it'riction 'surl ace 59 under the control o1 a brake band 60, hereinafter described. The brake bands 49, 58, and 60 are each operated through a suitable toggle mechanism 61, one only being shown herein, by means of controllinglevers 62, 63, and 64 2'), respectively, adapted to be carried on either side o-i the machine.

'Gooperatin g' with the feeding mechanism and engaging both'the teed her 7 and thetakeaip member 7 is the flexible feeding member or chain 3. Herein, the machine is shown as adapted to cut from right to left and in this disposition of the parts, it will 'be noted that the advancing portion of the chain 3 extends from the top o't'the teed sprocket 7, down beneath an idler sprocket and forward toward the tlront end o't the machine and around an idler 66 laterally to a jack A, while the reccdingportionextends downward beneath an idler 69, then upwardly towards the top of the machine, then transversel across the latter in a guiding ehanne'l'i'dtheii forwardly about the 'take-up sprocket 7, and then around. guides 71 and 72 rotatable on upstanding arxeson the rear end of the fra'n'ie, and laterallyto a jack B. Obviously,'by reversing the arrangement o f the idler sheave 65, the chain 3, and the control levers "62, '63 and (Myths machine may cut from left to right. lit will a'lso be understood that the machine is "adapted to 'be transported on a truck 73 and drive the latter, the truck driving and controllingmechanism herein being provided by the feed and feed controlling mechanism"previously descdbed and operatively connected to the truck whee'ls through a chain, herein a short section of chain 74 similar to the feed chain. Attention is also directed to'the factthat this chain 7 4 may be connected if desired between either the feed operating anember 7 or the take up member 7 and the truck wheels. the idler being removed when necessary.

operating inemin the operation of my improved construction the machine is preferably, when unloaded trom its wheeled truck 78, brought up to the face to the position indicated in full lines in Fig. 6. The advancing portion of the flexible member 3 is then connected to "the left hand rib while the receding portion is connected to the right hand rib, to the jacks A and B, respectively. The motor is then started, and when up to speed, the brake band 32, under control of hand wheel 33, is applied tending to hold the internal gear 17 from rotating and slowly rotating the sprocket '8 until the cutter chain 5 is resisted by thecoal, whereupon the feeding ineu'iber 7 and the take-up member? are caused to 1'0- tate slowly. Then through suitable manipulation of the levers 62 and 63 controlling the brake bands 4-9 and ,58, the cutter bar is sumped in under the coal as indicated by dottedlines at the right of Fig. (i. the band 32 being released/at this time, and the takeup member 7 slowly taking in the chain while the feed member 7 slowly pans it out and the slack chain moves in the channel 70. During:- thisoperation, the speed of the feed and take-up members is entirely under the control of the brake band 60 reacting back through the driving mechanism to thecutter chain 5, which is resistedbythecoal. lVhen in this position'the machinemay be straightened up'a'nd then cut transversely across the face, as indicated by the next dotted line positionat the left. WVlien the machine reaches the left hand rib it may be inclined relative to "the rib, as shown by the last dotted line position, and backed out without removing the jack A, by suitable manipulation of brake bands 4-9 and 58 and returned to thetruck at a high or haulage speed lil ewise under control of the brake band '60, In the operation of my improved mechanism, it will be noted that by 'n'ieaus oi the band 32 the chain driving sprocket 8 may be .110- tated or caused to remain idle while the motor is running, and'thatthe s )Getl of this sprocket is controlled by the amount of application oi? the brake 'bandGt) while'the cutter chain drive is coordinated with the feeding mechanism. Attention is also directed to thetact that by suitable immipulation of the brake band 60 it is possible to vary the speed of the feed operating memliier 7 or the take-up member 7, either imlependcntly or simultaneously by means of brake bands 49 and 58 and thereby increasing the facility ofoperation of the machine. The transport truck 73, which maybe driven by either the feedmember or the take-up, herein the takeup member 7, through the chain connection 74, may also have its speed controlled b the application of brake band 60, the cutter chain being held stationary at this time by meansof bra ke band 32, so that a relatively high truck speed may be obtained.

ion

While I have in this applicationspecifically described one form which my invention may assume in practice, it willbe. understood that this form of the same is shown for purposes ofillustration and that the in- "ting and having cutting mechanism projecting from one end thereof, a motor driving said cutting mechan1sm,var1able speed mechanism driven wholly by said motor and having a terminal element rotatable by said motor at different speeds, and feeding'means disposed to the rear of said cutting mechanism and driven by the terminal element of said variable speed mechanism, said feeding means including a plurality of independent planetary gearings and being operable to feed said machine in a direction parallel to the working face during cutting.

2. 'In a mining machine, a frame slidable on its bottom on the mine bottom during cutting and having cutting mechanism projecting from one end thereof, a motor driving said cutting mechanism, variable speed mechanism driven wholly by said motor and having a terminal element rotatable by said motor at different spee'ds,.and feeding means disposed to the rear ofysa'id cutting mechanism and driven by the terminal element: of

said variable speed mechanism, said feeding means including a plurailty of independent friction controlled planetary gearings and being operable to feed said machine in a direction parallel to the working face during cutting.

3. In a mining machine, a frame slidable onits bottom on'the mine bottom during cutting,'cutting mechanism projecting there from at one end thereof, a motor, fast and slow sped mechanism driven thereby, and feeding means disposed to the rear of said cutting mechanism and operative to effect feeding of said machine in a direction parallel to the working face during cutting,'said feeding means including a plurality of independent planetary gearings transmitting power during such feed.

1'. In a mining machine, a frame, cut-ting mechanism projecting from one end thereof and including acutter chain. driving sproclc et, a motor, variable speed mechanism driven v feeding meansv driven by.

by the motor, and v the mechanism including a feed operating member rotating on an axis disposed tothe rear of the axis of rotation of the cutter chain driving sprocket, a take-up member, and friction controlled planetary gearings individual to said feed operating member and to said take-up member respectively.

desire to secure ling drivmg gearing dependent for rotation 5. In a mining machine, a motor, variable speed mechanism driven thereby, and feeding means driven by said mechanismincluding a feed operating member and a take-up member, and a plurality of friction controlledplanetary gear mechanisms one individual to each of said members.

6. Ina mining machine, cutter chain driving mechanism, feeding mechanism includupon the resistance to movement of the cutter chain and also including a plurality of independent planetary driving 'mechanisn'is,

and means whereby variationof the resist ance to movement of the cutter chain may be effected at the will of the operator.

7. In a mining machine, a cutter chain, planetary driving mechanisms, driving gear ing for said chainand driving mechanisms operatively connecting the same so thatrotation of said driving mechanisms is dependent upon resistance to rotation of said cutter chain, said gearing including a friction controlled element, and feed operating and take-up members each operatively connected to a different one of the planetary driving mechanisms. I

8. In a mining machine, cutter chain driving mechanism including a friction controlled element, a plurality of planetary driving mechanisms, feed operating and take-up members, operatively connected to said mechanisms, ling means for said members for effecting independent control thereof. v

9. In a mining machine, feeding mechanism including a plurality of relatively rotatable feed controlling elements each adapted to effect machine movement, separate=frictionally controlled planetary gear train-s one associated'with each of said elements. and means whereby said elements may be driven at different speeds through their respective planetary trains. c

10. In a mining machine, feeding mechanism including feed operating and take-up members, separate planetary gear trains one associated with each of said members, and means whereby said members may be driven at different speeds through their respective planetary trains.

11. In amining machine. feeding mecha nism including feed operating and take-up members, planetary gear trains associated one with each of said members, and means whereby said members may be driven at different speeds through their respective planetary trains, said means including frictional means associated therewith.

' 12. In a mining machine, cutting mechanism including a cutter chain driving sprocket, feeding mechanism including feed controlling elements adaptedto cooperate directly with flexible feeding means, inclependentplanetary gearings, a motor for and independent control Ill) iii

driving one of said elements of said mechanism through oneof said gearings and the other through the other, and means disposed between said motor and gearing whereby said elements may be driven at different speeds including a member coaxial with said cutter chain drivingsprocket.

13. In a mining machine, feeding mechanism including feed controlling elements adapted to cooperate directly with flexible feeding means. independent planetary gearings one associated with one and another with another of said feed controlling elements, a motor for driving an element of said mechanism through said gearing, and means disposed between said motor and gearing whereby said elements may be'driven at different speeds, said latter means including a 'worm gear disposed on a vertical axis and a worm wheel coaxial with one of said elements. 1

i l. in a mining machine, cutting mechanism including a cutter chain driving sprocket, feeding mechanism including feed controlling elements adapted to cooperate directly with flexible feeding means, independent planetary gearings one associated with one and another with another of said feed controlling elements, a motor for driving an element of said mechanism through said gearing, and means disposed between said motor and gearing whereby said members may be driven at different speeds including a member coaxial with said cutter chain driving sprocket, said :planetary gearings being disposed'to one side'and'thcother to thcother side of the longitudinal axis-of said machine.

15.,ln a mining, machine, cutting mechanism including a cutter chain driving sprotaiet. driving mechanism therefor, feed inc; mechanism for said machine including feed controlling elements adapted to cooperate directly with flexible feeding means, planetary. gearing including planetary gear ings each individual to one feed controlling element and adapted to be ilt'rictionally controlled independcntly of said driving-mechanism. a motor, and means whereby at least one of said elements may be driven at dif ferent speeds througl said gearing by said motor including an element :coaxial with said cutter chain drivingsprocket.

iii. In a mining machine. a motor, ifccding mechanism including gearing, mechanism for rotating the latter at a plurality of speeds while the motor speed remains con stant, feed operating and take- 11p members, and operative connections between said gearing and said members including frictionally controlled planetary gearings respectively individual to each of said members.

17. In a mining machine, a motor, feeding 'n'iechanisin including gearing, mechanism for rotating the latter a ,ili irality of speeds while the motor speed remains constant, feed operating and take-up members, and operative connections between saichgearing and said members including a plurality of frictionally controlled planetarygearings.

18. The combination with a miningmachine having a motor, of Worm gearing rotatable at different speeds while the motor speed remains constant, a plurality of planetary driving mechanisms driven thereby, feed operating and take-up members ,driven by saidplanetary mechanisms, and. fleXible feeding means cooperating with said members.

19. In a mining machine. cutter chain driving mechanism, and feeding mechanism for eti ecting feed of said machine in a direc ticn parallel to a working face during cutting including a plurality of independent. planetary driving mechanisms and driving means for the latter including means driven from thecutterchain driving mechanism and dependent upon the reaction of the cutter chain for its operation.

20. In a mining machine. cutter chain driving mechanism, and feeding mechanism for elfecting feed of said :machine in-a direction parallel to a Working face during cutting including a feed operating member, a take-up member, and a plurality of frictionally controlled planetary driving mechanisms for said members, one individual to each of the same, anddriving ,means "for the latter including means driven from the cutter chain driving mechanism and dependent upon the reaction of the cutter chain for its operation. I

.21. In a mining machine, cutter chain driving mechanism, :lateral feeding mechanism including "means dependent upon the reaction of said cutter chain for operation and further including a plurality ofseparate planetary driving mechanisms, and means independent of said planetary driving mechanisms for controlling said feeding mechanism.

22. In a mining machine, cutting mechanism, driving means therefor. feeding-mechs anism for said machine including feed operating and take-up members.planetary gearing, a motor for driving one of said members through said gearing-and means frictionally controlled indepeiulcntly of said feeding mechanism whereby said members may be drivenwholly independently of each other at different speeds.

23. In a mining machine, cutter chain driving mechanism, :feeding ancchanism therefor including a 'feed operatinganember and a take-up member, plantary driving means for said members including planetary gearing individual to each ofsaid mem'liiers respectively, and means to drive said members independently or simultaneously and in either var able speeds.-

24. In a mining machine, cutter chain driving mechanism, feeding mechanism therefor including feed operating and takeup members, planetary driving mechanisms therefor,one individual to each of the same, and means to drive saidplanetary driving mechanisms and so said members at variable speeds in the same direction.

25. In combination with a mining machine, of a transport truck therefor, machine feeding mechanism including a feed operat ing member and a take-up member, planetary driving mechanism for said members, and means to drive said truck at variable speeds from one of said members.

26. In a mining machine, a feed operating member adapted to cooperate directly with flexible feeding means, planetary gearing, a motor, and means whereby said motor can drive said member at a plurality of speeds,

said latter means including a plurailty of mutually independently frictionally controlled means disposed between said motor and planetary gearin 27. In a mining machine, a frame, cutting mechanism projecting from one end thereof, feed operating means therefor disposed at the opposite end thereof including a feed operating member adapted to cooperate directly with flexible feeding means, and actuating means therefor including planetary gearing, a motor, and means between said gearing and motor whereby said motor can drive said member at different speeds, said means including a plurality ofmutually independ ently frictionally controlled elements 'disposed between said motor and gearin 28. In combination, a mining machine, a transport truck therefor, machine feeding means including a plurality of feed controlling elementsveach adapted to cooperate di-,

rectly with flexible feeding means, and means whereby said truck may be driven from each of said elements.

29. In combination, a mining machine, a transport truck therefor, a plurality of va riably controllable feed controlling elements carried by said mining machine and each adapted to cooperate directly with flexible feeding means, and means whereby each of said elements is adapted to control movement of said truck. I v

30. In combinatioina, mining machine, a transport truck therefor adapted to longitudinally slidably receive said mining machine, a plurality of feed controlling elements carried by said machine each of which is adapt-ed to cooperate directly with flexible feeding means, and means whereby each of the sameis adapted to drive said truck when said machine is in its transport position.

31. In a miningmachine, feeding means for said machine including a feed member and a take-up member, a driving'motor therefor, and means to speed up or slow down said members independently without disconnecting the same from said motor.

32; In a inining'machine, feeding means for said machine including a plurality of feeding members each adapted to'etfect machine movement, a driving motor therefor, and means whereby the members may be allowed to speed up or slow down independently without disconnecting the same from said motor. i

33. In a m ning machme,feed1ng means for, said machine including a plurality of feeding memberseach adapted to elfect'inachine movement, a driving motor therefor, and means whereby the members may be allowed to speed up or slow down independently without said motor, said means including gearin a 34. Ina mining machine, feeding means for said machine including a plurality of feeding members each adapted to efiect machine movement, a driving motor therefor, and means'whereby the members may be alplanetary lowed to speed up or slow down independ ently vwithout disconnecting the same from said motor, said means including friction controlled planetary gearin 35. In a mining machine, cutting mechanism carried thereby, feeding mechanism therefor including a plurality of feed controlling elements each adapted to effect machine movement, a motor, means whereby the same is adapted to drive said mechanisms from a single end thereof, and means whereby said elements may be independently speededup or slowed down without disconnecting the same from said motor.

36. In a mining machine, cutting mechanism projecting from one end thereof, feeding mechanism therefor including a plurality of feed controlling elements each adapted to cooperatedirectly with flexible feeding means,- a motor, means whereby the same is adapted to drive said mechanism from a single end thereof, and means disposed at the opposite to said cutting said elements may be up or slowed down the same from said end of said machine mechanism whereby independently speeded without disconnecting motor. I I

In testimony whereof I afllx my signature.

, CHARLES F. OSGOOD disconnecting the same from 

